Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:

 - Usual minor updates and fixes for bnxt_re, hfi1, rxe, mana, iser,
   mlx5, vmw_pvrdma, hns

 - Make rxe work on tun devices

 - mana gains more standard verbs as it moves toward supporting
   in-kernel verbs

 - DMABUF support for mana

 - Fix page size calculations when memory registration exceeds 4G

 - On Demand Paging support for rxe

 - mlx5 support for RDMA TRANSPORT flow tables and a new ucap mechanism
   to access control use of them

 - Optional RDMA_TX/RX counters per QP in mlx5

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (73 commits)
  IB/mad: Check available slots before posting receive WRs
  RDMA/mana_ib: Fix integer overflow during queue creation
  RDMA/mlx5: Fix calculation of total invalidated pages
  RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow
  RDMA/mlx5: Fix page_size variable overflow
  RDMA/mlx5: Drop access_flags from _mlx5_mr_cache_alloc()
  RDMA/mlx5: Fix cache entry update on dereg error
  RDMA/mlx5: Fix MR cache initialization error flow
  RDMA/mlx5: Support optional-counters binding for QPs
  RDMA/mlx5: Compile fs.c regardless of INFINIBAND_USER_ACCESS config
  RDMA/core: Pass port to counter bind/unbind operations
  RDMA/core: Add support to optional-counters binding configuration
  RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj()
  RDMA/mlx5: Add optional counters for RDMA_TX/RX_packets/bytes
  RDMA/core: Fix use-after-free when rename device name
  RDMA/bnxt_re: Support perf management counters
  RDMA/rxe: Fix incorrect return value of rxe_odp_atomic_op()
  RDMA/uverbs: Propagate errors from rdma_lookup_get_uobject()
  RDMA/mana_ib: Handle net event for pointing to the current netdev
  net: mana: Change the function signature of mana_get_primary_netdev_rcu
  ...

1 files changed, 73 insertions, 4 deletions

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 81849eb671a1..d07cacaa0abd 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -47,6 +47,7 @@
 #include <rdma/uverbs_ioctl.h>
 #include <rdma/mlx5_user_ioctl_verbs.h>
 #include <rdma/mlx5_user_ioctl_cmds.h>
+#include <rdma/ib_ucaps.h>
 #include "macsec.h"
 #include "data_direct.h"
 
@@ -1934,6 +1935,12 @@ static int set_ucontext_resp(struct ib_ucontext *uctx,
 	return 0;
 }
 
+static bool uctx_rdma_ctrl_is_enabled(u64 enabled_caps)
+{
+	return UCAP_ENABLED(enabled_caps, RDMA_UCAP_MLX5_CTRL_LOCAL) ||
+	       UCAP_ENABLED(enabled_caps, RDMA_UCAP_MLX5_CTRL_OTHER_VHCA);
+}
+
 static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx,
 				  struct ib_udata *udata)
 {
@@ -1976,10 +1983,17 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx,
 		return -EINVAL;
 
 	if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX) {
-		err = mlx5_ib_devx_create(dev, true);
+		err = mlx5_ib_devx_create(dev, true, uctx->enabled_caps);
 		if (err < 0)
 			goto out_ctx;
 		context->devx_uid = err;
+
+		if (uctx_rdma_ctrl_is_enabled(uctx->enabled_caps)) {
+			err = mlx5_cmd_add_privileged_uid(dev->mdev,
+							  context->devx_uid);
+			if (err)
+				goto out_devx;
+		}
 	}
 
 	lib_uar_4k = req.lib_caps & MLX5_LIB_CAP_4K_UAR;
@@ -1994,7 +2008,7 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx,
 	/* updates req->total_num_bfregs */
 	err = calc_total_bfregs(dev, lib_uar_4k, &req, bfregi);
 	if (err)
-		goto out_devx;
+		goto out_ucap;
 
 	mutex_init(&bfregi->lock);
 	bfregi->lib_uar_4k = lib_uar_4k;
@@ -2002,7 +2016,7 @@ static int mlx5_ib_alloc_ucontext(struct ib_ucontext *uctx,
 				GFP_KERNEL);
 	if (!bfregi->count) {
 		err = -ENOMEM;
-		goto out_devx;
+		goto out_ucap;
 	}
 
 	bfregi->sys_pages = kcalloc(bfregi->num_sys_pages,
@@ -2066,6 +2080,11 @@ out_sys_pages:
 out_count:
 	kfree(bfregi->count);
 
+out_ucap:
+	if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX &&
+	    uctx_rdma_ctrl_is_enabled(uctx->enabled_caps))
+		mlx5_cmd_remove_privileged_uid(dev->mdev, context->devx_uid);
+
 out_devx:
 	if (req.flags & MLX5_IB_ALLOC_UCTX_DEVX)
 		mlx5_ib_devx_destroy(dev, context->devx_uid);
@@ -2110,8 +2129,12 @@ static void mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
 	kfree(bfregi->sys_pages);
 	kfree(bfregi->count);
 
-	if (context->devx_uid)
+	if (context->devx_uid) {
+		if (uctx_rdma_ctrl_is_enabled(ibcontext->enabled_caps))
+			mlx5_cmd_remove_privileged_uid(dev->mdev,
+						       context->devx_uid);
 		mlx5_ib_devx_destroy(dev, context->devx_uid);
+	}
 }
 
 static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev,
@@ -4201,8 +4224,47 @@ static int mlx5_ib_init_var_table(struct mlx5_ib_dev *dev)
 	return (var_table->bitmap) ? 0 : -ENOMEM;
 }
 
+static void mlx5_ib_cleanup_ucaps(struct mlx5_ib_dev *dev)
+{
+	if (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RDMA_CTRL)
+		ib_remove_ucap(RDMA_UCAP_MLX5_CTRL_LOCAL);
+
+	if (MLX5_CAP_GEN(dev->mdev, uctx_cap) &
+	    MLX5_UCTX_CAP_RDMA_CTRL_OTHER_VHCA)
+		ib_remove_ucap(RDMA_UCAP_MLX5_CTRL_OTHER_VHCA);
+}
+
+static int mlx5_ib_init_ucaps(struct mlx5_ib_dev *dev)
+{
+	int ret;
+
+	if (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RDMA_CTRL) {
+		ret = ib_create_ucap(RDMA_UCAP_MLX5_CTRL_LOCAL);
+		if (ret)
+			return ret;
+	}
+
+	if (MLX5_CAP_GEN(dev->mdev, uctx_cap) &
+	    MLX5_UCTX_CAP_RDMA_CTRL_OTHER_VHCA) {
+		ret = ib_create_ucap(RDMA_UCAP_MLX5_CTRL_OTHER_VHCA);
+		if (ret)
+			goto remove_local;
+	}
+
+	return 0;
+
+remove_local:
+	if (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RDMA_CTRL)
+		ib_remove_ucap(RDMA_UCAP_MLX5_CTRL_LOCAL);
+	return ret;
+}
+
 static void mlx5_ib_stage_caps_cleanup(struct mlx5_ib_dev *dev)
 {
+	if (MLX5_CAP_GEN_2_64(dev->mdev, general_obj_types_127_64) &
+	    MLX5_HCA_CAP_2_GENERAL_OBJECT_TYPES_RDMA_CTRL)
+		mlx5_ib_cleanup_ucaps(dev);
+
 	bitmap_free(dev->var_table.bitmap);
 }
 
@@ -4253,6 +4315,13 @@ static int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev)
 			return err;
 	}
 
+	if (MLX5_CAP_GEN_2_64(dev->mdev, general_obj_types_127_64) &
+	    MLX5_HCA_CAP_2_GENERAL_OBJECT_TYPES_RDMA_CTRL) {
+		err = mlx5_ib_init_ucaps(dev);
+		if (err)
+			return err;
+	}
+
 	dev->ib_dev.use_cq_dim = true;
 
 	return 0;